This a very dependant question for the many possible answers available. It mainly depends on the words which form the vocabulary of the dictionary and its organization through the pages, something that is very difficult to preview.
Explanation:
Almost all dictionaries present words at the top of the pages to serve as a guide according to the alphabet, which means this is very dependant on all words in the dictionary. If the word "boasted" is in the dictionary it means that it will be among words that begin with letter "b", followed by the vowel "o", such as words like "boar", "board" and "boarding".
